take the custom _includes/head.html out of RSQkit again

[egpbos]

In #170, we added a custom head.html to disable Matomo cookies. Hopefully, ETT will merge ELIXIR-Belgium/elixir-toolkit-theme#314 which builds this functionality into ETT itself. If that happens, we can remove the customized head.html from RSQkit and just add the matomo_cookies: false line to config.yml to disable the cookies here.

[shoaibsufi]

Check pinned version and update accordingly in the config file

[anenadic]

Current version of the ETT theme is 4.1.0 - are we ready to update this in the config file @egpbos? There are a few other bug fixes in this release of the theme that would make RSQKit look better.

Related to #202.

[egpbos]

Yes, we are ready to upgrade. If you are going to upgrade only, please keep this issue open so I will remember to also clean up the then deprecated custom head file.

[anenadic]

I was going to let you clean up the custom _includes/head.html and bump up the theme version at the same time (after testing) so we cn close both issues at the same time. How does that sound @egpbos?

[egpbos]

Works for me! I won't have time today I fear, but I'll get to it soon.